Motor



No Model.) 2 Sheets-Sheet 1.

E. B. NEWGOMB.

MOTOR. No. 407,942'. Patented July 30, 1889..

W By m A TTR/VEY (No Model.) 2 Sheets-Sheet 2. E. B. NEWCOMB.

` MOTOR. No. 407.942. Patented July 30, 1889.

WITNESS/58: gl/73H01? ATTORNEY .NA Persns. Pnmuhagnphu. wn'hingmwp-c UNITED 'STATES PATENT FFICE.

EVANDER B. NEICOMB, OF PARSONS, KANSAS.

MOTOR.

SPECIFICATION forming* part of Letters Patent N0. 407,942, dated uly 30, 1889. Application filed January 22, 1889. Serial No. 297,139. (No model.)

To all whom, it may concern: j

Be it known that I, EVANDER B. NEWcoMB, of Parsons, in the county of Labette and State of Kansas, have invented a new and Improved Motor, of which the following is a full, clear, and exact description.

The invention relates to spring-motors; and its object is to provide a new and improved motor which is simple and durable in construction, very effective and noiseless in operation, and specially designed to operate light machinery, such as sewing-machines, jewelers lathes, churns, dac.

The invention consists in certain parts and details and combinations of the same, as will be fully described herein after, and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Fig. l is a plan view of the improvement. Fig. 2 is a side elevation of the same; and Fig. 3 is a sectional side elevation of the same on the line @c of Fig. l, with parts broken out.

0n a suitably constructed frame A is mounted to rotate in suitable bearings the transverse shaft B, to which is secured one end of a coiled spring C, fastened by its outer end to the inside of a barrel D, mounted to rotate loosely on the said shaft B. On the latter is fastened a gear-wheel E, into which meshes an intermediate gear-wheel F, meshing into a gear-wheel G, secured on a shaft G', mounted to rotate in suitable bearings on the front of the main frame A and carrying a three-armed lever H for turning said shaft G'. Vhen the latter is turned in the direction of the arrow a', a 'rotary motion is ixnparted to the shaft B in the direction of the arrow b','so that the coil-spring C is wound up, provided the barrel D is held in place.

The shaft B is adapted to be locked in place after the spring is wound up by a pawl I, formed in the shape of a segment and provided near its upper end with a slot I', through which passes a rod I2, held on the upper part of the main frame A. The part I3 of the lower edge of the pawl I is smooth, and the part I4 is provided with gear-teeth adapted to mesh into the gear-teeth of the wheel E. lVhen the spring O is wound upLas above described, the smooth part I3 of the pawl I rests on top of the teeth of the gear-wheel E, as shown in Fig. As soon as the operator stops turning the three-armed lever I-I the shaft B will turn in the inverse direction of the arrow h' by the force of the spring C. The moment this takes place t-he teeth of the gear-wheel E will act upon the smooth part I3 of the pawl I and push the latter upward, the slot I' permitting said movement. The upward movement of the pawl Ibrings the teeth of the part I4 into mesh with the gear-wheel E, so that the latter, and consequently the shaft B, is locked in place. The return motion of the shaft B is thus prevented.

On the barrel D is secured or formed a gearwheel D', which meshes into a pinion J of a train of gear-wheels J, alsoA provided with a shaft J2, carrying the said pinion J', and mounted to rotate in suitable bearings in the main frame A. On the shaft J 2 is secured the gear-wheel J 3, which meshes intoa pinion J 4, fastened on a shaft J5, mounted to turn in suitable bearings in the main frame A and carrying a large gear-wheel J6, which forms the last wheel of the train of gear-wheels J just described. N designates an adjustable frame, which is provided with a segmental slot N', through which passes a bolt or screw N2, screwing into an auxiliary frame O, fastened in the main frame A. The gear-wheel J ,before referred to, meshes into a pinion K, which is mounted to turn on the frame N, and' through the hollow hub of which extends removably a shaft L. The frame N can be moved forward or backward by slackening the screw or bolt N2, so that the pinion K engages the gear-wheel J either in its lowermost position or on one side thereof, thus assuming a higher or lower position, as desired, and for a purpose hereinafter more fully described. Vhen the frame N has been adj usted, it is held in place on the auxiliary fra-me O by screwing up the screw or bolt N2.

The shaft L projects rearward through the frame A, and carries adj ustably a crank-arm I), on which is formed a crank-pin Q, adapted to be passed between the spokes of a drivingwheel of the machine to be driven. The outer end of the shaft L is pointed and is adapted to be centered on the shaft of the drivingwheel of the machine to be driven, asis plainn IDO ly shown in Fig. l. The shaft L is interchangeable with the gears K R-that is, it may be taken out of the hub of gear K and inserted through the hub of gear R, or vice versa-so that when the shaft L is in the hub of the pinion K it rotates in one direction, and when the shaft L has been inserted in the hub of the pinion K it rotates in the opposite direction. This device permits of turning the machine to be driven in either direction.

On the auxiliary frame O is formed an upwardly-extending bracket O', in which screws a screw-rod T, carrying on one outer end a hand-wheel T', and fitting at its other end loosely into an arm M, hung loosely on the shaft J 5 of the train of gear-wheels J. Vhen the screw-rod T is screwed up by turning the hand-wheel T the inner end of the said screw-rod will abut against the shaft J 5 and brake the same, so as to cause the motor either to run slower or to stop entirely, as desired.

The base A of the main frame A is provided on each end with a recess or slot A2, into which fits the upper end of a U-shaped clamp V, adapted to pass over the edge of the table WV, and carrying on its lower arm a clampin 0f-screw V serving to clamp the frame A to the table W, supporting the machine to be driven. The slots A2 and the clamps V rpermit a forward and backward movement of the frame A, so as to bring the shaft L in the desired position relative to the driving-wheel of the machine to be driven.4

The operation is as follows: Vhen the Inotor is set in place on the table W, the crankpin Q passes between two spokes of the driving-wheel, thecenter of the shaft L being in line with the center of the shaft of the said driving-wheel. Vhen the spring C has been wound up, as before described, and the shaft B is locked in place by the pawl I, then the force of the spring will rotate the barrel D, which, by its gear-wheel D', set-s the train of gear-wheels J in motion. The gear-wheel J 6 of the train of gear-wheels J imparts a rotary motion to the pinion K, so that the shaft L is turned, and the crank-arm P, fastened on the said shaft, turns by its crank-pin Q the driving-wheel of the machine to be driven. Vhen the operator desires to rotate the drivingwheel in an opposite direction, he interchanges the shafts S and L, as before described. 1

The speed of the motor can be regulated by adjusting the screw-rod T so as to brake more or less the shaft J 5 of the train of gearwheels J. The machine can be entirely stopped by screwing the screwrod T up hard against the shaft J 5, so as to prevent its ro` tary motion.

The machine takes up very little room and can be easily applied to light machinery, such as sewing-machines, jewelers lathes, churns, &c. It will be seen that the machine will run very steadily, and before the spring C is entirely unwound can be rewound by turning the handle II without stopping the running of the motor. The special construction of the pawl I makes the machine noiseless.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a motor, the combination, with a spring-shaft and a gear-wheel secured thereon, of a segmental pawl held in contact at its periphery with the teeth of the said gear- Vwheelsaid"`per'iphery being partly smooth and partly provided with gear-teeth adapted to mesh into gear-teeth of .the said gear-wheel, said pawl being provided with a slot through which passes the pin forming the fulcrum for the pawl, substantially as shown and described.

2. In a motor, the combination, with a spring-barrel and a coiled spring, of a shaft connected with the said spring, a gear-wheel held on the said shaft, and a segmental pawl havin g its contacting lower edge partly smooth and partly provided with gear-teeth adapted to mesh into the gear-teeth of t-he said gear- Wheel, substantially as shown and described.

3. In a motor, the combination, with a spring-barrel and a coiled spring, of a shaft connected with the said spring, a gear-wheel held on the said shaft, a segmental pawl having its contacting lower edge partly smooth and partly provided with gear-teeth adapted to mesh into the gear-teeth of the said gearwheel, said pawl being provided with a slot, and a fixed pin passing through the said slot and forming the fulcrum for the pawl, said slot permitting an upward motion of the said pawl, substantially as shown and described.

4. In a motor, the combination, with a shaft, a spring-barrel provided with a gear-wheel and held loosely on the said shaft, and a coiled spring secured by. its ends to the said shaft and the said barrel, of a train of gear-wheels connected with the said barrel gear-wheel, a pinion engaging one of the wheels of the said train of gear-wheels, a shaft carrying the said pinion, and a crank-arm held on the said shaft and engaging the wheel to be driven, substantially as shown and described.

5. Ina motor, the combination, with a shaft, a spring-barrel provided with a gear-wheel and held loosely on the said shaft, and a coiled spring secured by its ends to the said shaft and the said barrel, of a train of gear-wheels connected with the said barrel gear-wheel, an adjustably-pivoted frame carrying a pinion engaging one of vthe wheels of the said train of gear-wheels, and a second pinion meshing into the rst-named pinion, substantially as shown and described.

6. In a motor, the combination, with a shaft, a spring-barrel provided with a gear-wheel and held loosely on the said shaft, and a coiled spring secured by its ends to the said shaft and the said barrel, of a train of gear-Wheels connected with the said barrel gear-wheel, an

IOO

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adjustable frame carrying a pinion engaging one of the Wheels of the said train of gearwheels, aseeond pinion meshing into the irstnamed pinion, and a shaft interchangeable with the said pinions and provided with a crank at one end, substantially as shown and described.

7. In a motor, Jbhe combination, with a shaft, a spring-barrel provided with a gear-Wheel and held loosely on the said shaft, and acoiled spring secured by its ends to the said shaft and the said barrel, of a train of gear-wheels connected with the said barrel gear-Wheel, a

pinion engaging one of the wheels of the said train of gear-Wheels,aseoondpinion meshing into the first-named pinion, and an adjustable frame carrying the said shafts and serving to raise and lower the iirst-named pinion, at the same Jcime holding it in mesh with its gear-wheel, substantially as shown and dezo scribed.

EVANDER B. NEWCOMB.

Witnesses:

WILLIAM SULLIVAN, JOHN SCHMITZ. 

